Spectacles



Sept. c. T. PANKHURST 7 2,358,734

SPECTACLES Filed Jan. 19, 1942 Imam- M 56 CTTPani/zurs? Patented Sept. 19, 1944 UNITED -S"TATES PATENT SPEGTACLES I: i Charles T. Pankhurst, Ionia, Mich.' V

v Application Jan-uary 19, 1942, Serial No, 427,372

' 6Claims.

This invention relates'to spectacles.

At the present time in theconstruction of spectacles of the rim type where the eyewire is split at the outer portions thereof,the split portions of the eyewire are secured together by means of a screw and each temple bar is pivotally secured to an endpiece by means of a pivot screw. With a construction of this type either one or both of the screws frequently become loosened with resultant? loss and/r breakage ofthe lenses or other damage to the spectacles. t is, therefore, an' object of" this invention to provide a means whereby a resilient and readily releasable clamping means whichis engageable with eitherone or both of the screws at a side of the spectacles for holding the screws against loosening and against loss will hold the screws tight,

Another object ofthis invention is to provide in a pair of spectacles of the rim type an improved means for holding the temple bar onto the endpiece, so that the temple bar may be removed or' mounted without the use of a screwdriver or other tool.

A further object of this invention is to provide in combination with a pair of spectacles of the rimless type a resilient holding means for holding the temple connection screw against loosening.-

'A further objectof this invention is to provide in a pair of spe cta cles of-the type known to theitrade asfNuinont which includes a brow arm on the rear side of each lens, an improved means for holding the temple-bar on theouter end of the brow arm, so thatthe temple connection screw will not become loosened or lost.

A further object of this invention is to provide an improved meansior retaininga temple connection screw in' applied position which is so constructed, that thertaining means may be mounted on either the temple bar or the endpiece. 7 p

A further object of this inventi'on is to provide as an attachment for a pair of spectacles of either. the rim or rimless type a resilient holding means for either or both the temple connection means and. the eyewire connecting means.

A further object o'f thisinvention is to provide a deviceof thiskind which may be used with either rim or rimless spectacles of the metal type. or may be used with spectacles of the zylonite or shell type. 1

To the foregoing objects and others which may hereinafter appear the invention consists of the novel iconstructiom combination and arrangementof partsas will be more specifically referred to and illustrated in-the accompanying drawing. but it is to: be understood that changes; variations and modifications may be resorted to which fall within the scope of the invention as claimed. In the drawing: f I Figure 1 is a fragmentary front elevation of :apair of spectacles of the rim type having an eyewire connection screw and temple bar pivot, re-' taining means mounted'thereom.

Figure 2 is a fragmentary top plan of; the outer end of the. spectaclesshown in Figure 1 Figure 3 is a sectional view taken'on the line. 33'-of Figure 2, I

Figure 4' is a fragmentary top plan of the outerend of a pair of spectacles of the rimless type having a temple barpivot retaining means mounted thereon, Y Y Y Figure 5 is a detail front elevation partly in section of the structure shown in Figure 4, t Figure 6 is a fragmentary top plan of a temple bar pivot retainingmeans mounted on a pair of spectaclesof the type known as Numont, and Figure 7 is 'a fragmentary front elevation partly in section of a further'mod-ificationof this invention. I

Referring to the drawing and first to Figures 1 to 3 inclusive, the numeral I0 designates gen erally a pair'of spectacles of the ,rim type which will include a pair of eyewires I I enclosing a pair of lenses I2, and the eyewires H at the central portions will be connected together by means of the usual nose bridge and may"bei'p"rovided with the usual nose pads supported from .nose 'pa'd Y arms in the conventional manner; Y

The eyewire lliin the present instance is split at its outer portion and includes a lower'eyewire section l3 and an upper eyewire section M." The upper eyewire section l4'hasfixedly secured thereto an outwardly extending endpiece l5 which is provided atthe inner'end portion thereof with a downwardly opening recess |6 Y The lower eyewire l3is provided with an outwardly extending ear "fwhich is engageable within the recess orsocket I6, and an eyewire connection screw I8 is extended through an opening l9in the'endpiecerl5 and threaded into the ear 11. The screw I8 is provided with'a head!!! which is countersunk in the uppersideof the endpiece I5, and the upper surface of thehead 20 left unfinished orroughened as at 20. p

A temple bar 2| is pivotally secured to theouter end of the endpiece l5 and the endpiece I5 is formed with an inwardly extending slot 22 withstance is constructed in'the form of a: straight; pin with a smooth'peripheral surface, although if desired, the pivot member 24 may be a convenple bar connection screw 43 may be resiliently held in applied position, I have provided a longitudinally bowed resilient screw retaining or clamping member generally designated as 46. The retaining or clamping member 46 is constructed of a longitudinally bowed strap 41 which is pivotally mounted adjacent the inner end portion thereof on a pivot member 48. The pivot member 48 is provided at its upper end, with an tional screw similar to the screw l8. The head 26 of the pin 24 is roughened or unfinished as In order to provide a means whereby the screw l8 and the pivot member 24 may be retained in applied position, I have provided a resilient screw and pivot retaining member generally designated as 28. The retaining member 28 is constructed in the form of a longitudinally bowed resilient strap 29 formed of spring steel or the like which has the opposite ends thereof overlying. the

roughened heads and 26 of the screw I8 and the pivot member 24. The strap or retaining member 28 is formed in the center? thereof with an opening- 30 through'which apin 3| is adapted to loosely engage. The pin 3| is soldered as at 32 to the upper'side of the endpiece l5 and is formed with a head 33 at 'its upper end;- The. retaining member 28 at the opposite ends thereof is provided with roughened surfaces 34 and 34 engageable with the roughened. surfaces 28 and 26 of the heads 26 and 26.respectively, so

that the retaining member 28 will be more firmly held against turning'on the pin 3|.

When the retaining member 28 is in applied po-' sition, the opposite ends thereof: will resiliently press against the heads 28 and 26 of the screw |8 and the pivot member 24 respectively, and the tension of the'retaining member 26 on the screw l8 and the pivot'member 24' will resiliently hold the retaining member 28 against rotation with respect to the pin or rivet 3|, while at the same time the roughened contacting sur-i faces of the heads 28 and 26 and the retaining. member 28 willalso hold the member 28 against accidental turning.- When it is desired to re-j move "either the screw l8 orthe pivot member 24 orboth of these members, the retaining member 28'isrotated toiaposition where the oppositeendsthereof are disengaged with respect to the heads 28 and 26 of the screw l8, and the pivot member 24, respectively, thereby permitting the screw l8 to be loosened or the pivot member 24 to be withdrawn from the endpiece l5.

I-n Figures 4 and 5 there is disclosed in fraga the endpiece 35.

g the endpiece 35.

upsethead 49 engaging the upper side of the strap 41, and the lower end of the pivot member 48 is soldered as at 58 on the upper side of The inner end of the strap 41 is cut off on an angle as at 5|, so that when the retaining member 46 is in applied or clamping position, the inner end portion thereof will not \project beyond the rear or forward side of The outer end of the strap 41 is roughened as at 5| and is adapted to engage on the upper sideof the screw head 45, so as to thereby firmly hold the screw 43 against loosening or loss. a s

'Referring now to Figure 6 there is disclosed in fragmentaryform a spectaclestructure of the typeknown in the trade as Numont which is manufactured by the American Optical Company of Southbridge, Massachusetts. The spectacles shown in Figure 6 include a brow arm 52 which is adapted to engage on the rear side of a lens 53 adjacent the upper edge thereof. The. brow arm52 has formed integral therewith an endpiece 54 and a temple bar55 is adapted to be pivotallysecured to the endpiece 54 by means of a temple connection or pivot screw56. The temple bar connection screw 56 is clamped against movement or loosening by means of a longitudinally bowed clamping bar 51 which is similar to the clamping bar 46 being pivotally mounted onl-a headed pivot member 58 which is soldered to the upper side of the endpiece 54.

' Referring now to Figure '1 there is disclosed a. spectacle construction including a temple bar 59 which is pivotally mountedon a temple bar connection screw 6|]. The connection screw 60 engages throughan endpiece coupling member 6| which may be formed as-a, part of the spectacle frame structure shown in Figure 6 or of the spectacle endpiece structure shown in Figures 1 to 5 inclusive. YThe connection screw 60 is resiliently clamped in operative or applied position bymeans of a longitudinally bowed clampmentary form a pairof spectacles of the rimless 7 type. In this form the endpiece 35 is secured to a lens. edge strap 36 and to a pair of lens end of the-endpiece 35. A. pivot screw .43 is ex- 7 tended through'the uppermost ear 4| and is threaded into the". lowermost ear 4|, passing through an opening 44 which is formed in the ear 42. The screw'43 hasthe head 45 thereof uppermost and the head 45 is also countersunk into the upper side of the uppermost ear 4|.

In orderto provide a means whereby the teming member 62.. The clamping member 62 is pivotally mounted intermediate the ends thereof on a headed pivot member 63 which is secured to the forward end of the 'temple bar 59 rearwardly from the ears 64 thereof. The clamping member .62 is similar to the clamping member 46 with the exception that the clampingmember 62is mounted on the temple bar 59. The clamping members 51 and 62 are roughened at their outer ends for contact with the heads of the screws 56 and 60, respectively, to thereby hold the clamping members against accidental tuming. 7

The retaining or clamping means hereinbefore described may be made either in combination with or as an attachment for a pair of spectacles which may be, formed of either a metal frame or a zylonite or shell frame, or the spectacles may be of the rimless or brow arm type. Furthermore, as disclosed in the drawing, the retaining means for the temple bar pivot connection may be mounted on the endpiece or may be mounted on a'temple bar. The clamping member 46, 51, and 62 will normally overlie the temple connection screw or pivot member, so as to yieldingly hold this pivot member against 100$- ening or loss. When it is desired to remove the temple bar connection pivot, the clamping member may be swung to a lateral position, so that the outer end thereof will be disengaged from the head of the temple bar connection pivot.

What I claim is:

1. In a pair of spectacles including an eyewire 2. In combination a pair of spectacles includ- 'ing split eyewires, an endpiece an endpiece connection screw engaging said endpiece for holding the split ends of the eyewire together, a temple bar, a headed temple bar connection pivot, a longitudinally bowed resilient retaining memher for holding said pivot and screw against end-- wise movement in one direction, and means fixed relative to the endpiece engaging said retaining member intermediate the ends thereof pivotally mounting said retaining member on the endpiece.

3. In a pair of spectacles including an endpiece member, a temple bar member and a temple bar connection pivot, a resilient elongated longitudinally bowed pivot retaining element having an end thereof engageable against an end piece'member, a temple bar member and a temple bar connection pivot, a resilient elongated longitudinally bowed pivot retaining element having an end thereof engageable against an end of said pivot, said retaining element having a roughened surface engageable with said pivot to hold said retaining element against turning, and means engageable with said element spaced from said end of said element pivotally mounting the said element on one of said members, said means tensioning said element to thereby hold said element in pivot retaining position.

5. In a pair of spectacles including an eyewire I for each lens, an endpiece, a temple bar pivotally carried by the endpiece, a temple bar connection pivot and an eyewire connection screw, a resilient holding member for said pivot and screw, and means pivotally securing said holding member on the endpiece whereby one end of said member will engage an end of said pivot and the other end of said member will engage said screw, the opposite ends of said holding member and the adjacent ends of said pivot and screw.

" being provided with roughened surfaces to thereby hold said holding member against turning.

8'. An ophthalmic device having endpieces, temples for connection with said endpieces, and headed pivot means engaging said endpieces and said temples for connecting saidtemples to said endpieces, a longitudinally bowed resilient clamping bar for holding said connecting means against displacement and a stationary pivot for said bar carried by said endpiece, one part of said bar resiliently frictionally engagingsaid headed pivot means and an intermediate part of said bar resiliently bearing against said stationary pivot for tensioning said bar to thereby hold said headed pivot means in operative position.

CHARLES T. PANKHURST. 

